<template>
  <el-container class="main-container">
    <!-- 头部区域 -->
    <el-header>
      <!-- 左侧的 logo -->
      <img src="../../assets/images/logo.png" alt="" />
      <!-- 右侧的菜单 -->
      <el-menu
        class="el-menu-top"
        mode="horizontal"
        background-color="#23262E"
        text-color="#fff"
        active-text-color="#409EFF"
      >
        <el-submenu index="1">
          <template slot="title">
            <!-- 头像 -->
            <img :src="$store.state.userInfo.user_pic" alt="" class="avatar" />
            <span>个人中心</span>
          </template>
          <el-menu-item index="1-1"><i class="el-icon-s-operation"></i>基本资料</el-menu-item>
          <el-menu-item index="1-2"><i class="el-icon-camera"></i>更换头像</el-menu-item>
          <el-menu-item index="1-3"><i class="el-icon-key"></i>重置密码</el-menu-item>
        </el-submenu>
        <el-menu-item @click="logoutHandler" index="2"><i class="el-icon-switch-button"></i>退出</el-menu-item>
      </el-menu>
    </el-header>
    <el-container>
      <!-- 侧边栏区域 -->
     <el-aside width="200px">
   <div class="user-box">
     <!-- <img v-if="userInfo.user_pic" :src="userInfo.user_pic" alt="" /> -->
        <img  v-if="$store.state.userInfo.user_pic"
        :src="$store.state.userInfo.user_pic"
        alt="" />
    <span>欢迎 {{userInfo.nickname  ||userInfo.username}}</span>
    </div>
<el-menu
  default-active="/home"
  class="el-menu-vertical-demo"
  background-color="#23262E"
  text-color="#fff"
  active-text-color="#409EFF"
  unique-opened
  router
>
<template v-for="item in menus">
  <!-- 不包含子菜单的“一级菜单” -->
  <el-menu-item v-if="!item.children" :key="item.indexPath"  :index="item.indexPath"><i :class="item.icon"></i>{{item.title}}</el-menu-item>
  <!-- 包含子菜单的“一级菜单” -->
  <el-submenu  v-else :key="item.indexPath" :index="item.indexPath">
    <template #title>
      <i :class="item.icon"></i>
      <span>{{item.title}}</span>
    </template>
    <el-menu-item
    v-for="sub in item.children"
    :key="sub.indexPath"  :index="sub.indexPath"><i :class="sub.icon"></i>{{sub.title}}</el-menu-item>

  </el-submenu>
  </template>
</el-menu>
 </el-aside>
      <el-container>
        <!-- 页面主体区域 -->
        <el-main>
        <router-view></router-view>
        </el-main>
        <!-- 底部 footer 区域 -->
        <el-footer>© www.itheima.com - 黑马程序员</el-footer>
      </el-container>
    </el-container>
  </el-container>
</template>

<script>
import { mapState } from 'vuex'

export default {
  name: 'Main',
  created () {
    this.$store.dispatch('getUserInfo')
    ///
    this.initMenus()
  },
  data () {
    return {
      menus: {}
    }
  },
  // 注销
  methods: {
    logoutHandler () {
      // 提示用户, 是否退出,
      this.$confirm('是否确认退出', '提示', { type: 'warning' }).then(() => {
        // 当用户点击确认,清除token的数据
        this.$store.commit('updateToken', '')
        // 清除完成 切换到登录界面
        this.$router.push('/login')
        // 弹出退出成功提示
        this.$message.success('退出成功')
      }).catch(e => e) // catch(e => e) 取消 不显示任何错误
    },
    async  initMenus () {
      // 没有设置请求拦截器之前需要填加 headers:token
      // const { data: res } = await this.$http.get('/my/menus', {
      //   headers: {
      //     Authorization: this.token
      //   }
      // })
      // 已经设置请求拦截器之后.就无须设置了
      const { data: res } = await this.$http.get('/my/menus')
      if (res.code === 0) {
        this.menus = res.data
      }
    }
  },
  computed: {
    ...mapState(['userInfo'])
  }
}
</script>

<style lang="less" scoped>
.main-container {
  height: 100%;
  .el-header,
  .el-aside {
    background-color: #23262e;
  }
  .el-header {
    padding: 0;
    display: flex;
    justify-content: space-between;
  }
  .el-main {
    overflow-y: scroll;
    height: 0;
    background-color: #F2F2F2;
  }
  .el-footer {
    background-color: #eee;
    font-size: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
}

.avatar {
  border-radius: 50%;
  width: 35px;
  height: 35px;
  background-color: #fff;
  margin-right: 10px;
  object-fit: cover;
}

// 左侧边栏用户信息区域
.user-box {
  height: 70px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-top: 1px solid #000;
  border-bottom: 1px solid #000;
  user-select: none;
  img {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: #fff;
    margin-right: 15px;
    object-fit: cover;
  }
  span {
    color: white;
    font-size: 12px;
  }
  // 侧边栏菜单的样式
.el-aside {
  .el-submenu,
  .el-menu-item {
    width: 200px;
    user-select: none;
  }
}
}
</style>
